A boring topic, I know, but it's nice in today's high priced environment.

On my way home from North Carolina yesterday, I put my 528 on cruise at 70mph and cruised uninterruptedly on I-95 for 170 miles home. It was 70 for almost the entire thing, other than just a couple necessary traffic maneuvers.

I scored 36 miles to the gallon. I was using plain old Shell 89 octane.